The PDC2 from Astatic is a dual readout multifunction meter. In addition to SWR and power, the included antenna allows you to measure field strength around your CB antenna. This is useful for finding dead zones in the radiation pattern of your antenna. The meter measures 5 5/8" W x 2 3/8" T x 2 1/2" D, including the antenna connections and .... "/>Astatic 302-pdc2 swrrffield strength test meter